$69.99 but I am not sure what you have left for your budget from the Onsale site.

__________________The oath to serve your country did not include a contract for normal luxury, and comforts enjoyed within our society. On the contrary it implies hardships, loyalty and devotion to duty, regardless of rank

They took $200 off of my credit for no reason, so I spent the remaining $70 on the Coolermaster HAF 912 case. My plan is to now buy the APEX power supply, the 8 gigs of ram, the i3, and the MOBO from earlier, take an old hard drive and disc drive, and use the i3's integrated graphics for now, until I can afford a video card, which will probably be the 6850. Anybody have a better recommendation? You've all been quite helpful so far.

I am a little leery of that psu you are looking at. One is it is only 65% efficient at full load so its a power pig and produces a lot of excess waste heat. Second it is 500w maximum, not a continuous 500w. So when you get that video card you will definitely have to upgrade this anyways. Third, if it doesn't give you clean power then it could kill other parts on you.

__________________The oath to serve your country did not include a contract for normal luxury, and comforts enjoyed within our society. On the contrary it implies hardships, loyalty and devotion to duty, regardless of rank

Other suggestions would be from the Antec HCG series or maybe the Earthwatts series if you can't afford an HCG, or any Seasonic with the connections that you need, such as the S-12 series. Don't believe misinformed suggestions that for some reason you need a PSU that says 500W on it for gaming.

Since you're running an i3, that will not draw more than 75W, and add 150W MAX on the Radeon 6850 (with one PCI-E connector you can't draw more than 150W max without exceeding the capacity of your wiring). Add hard drives, and your computer will barely draw 230W on stress tests. My Core i5 2500k + GTX 550 Ti both overclocked only draw 230W according to my BluePlanet meter, so you'll be less than that.
A *good* 350W power supply that has the needed connectors will do fine for your i3 + 6850 combination.

__________________"The computer programmer says they should drive the car around the block and see if the tire fixes itself." [src]

There are some members of the forums here who will tell you stay away from OCZ power supplies due to reliability issues.

__________________The oath to serve your country did not include a contract for normal luxury, and comforts enjoyed within our society. On the contrary it implies hardships, loyalty and devotion to duty, regardless of rank